进行投资方案经济评价时,基准收益率的确定应以（ ）为基础。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29338' and id < 2388784 and id<>'2388784' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29338' and id > 2388784 and id<>'2388784' order by id asc limit 5